| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.karaf.features.internal; |
| |
| import java.util.Dictionary; |
| import java.util.Hashtable; |
| |
| import org.apache.karaf.features.EventConstants; |
| import org.apache.karaf.features.FeatureEvent; |
| import org.apache.karaf.features.FeaturesListener; |
| import org.apache.karaf.features.RepositoryEvent; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.service.event.Event; |
| import org.osgi.service.event.EventAdmin; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| /** |
| * A listener to publish events to EventAdmin |
| */ |
| public class EventAdminListener implements FeaturesListener { |
| |
| private final ServiceTracker tracker; |
| |
| public EventAdminListener(BundleContext context) { |
| tracker = new ServiceTracker(context, EventAdmin.class.getName(), null); |
| tracker.open(); |
| } |
| |
| public void featureEvent(FeatureEvent event) { |
| EventAdmin eventAdmin = (EventAdmin) tracker.getService(); |
| if (eventAdmin == null) { |
| return; |
| } |
| Dictionary<String, Object> props = new Hashtable<String, Object>(); |
| props.put(EventConstants.TYPE, event.getType()); |
| props.put(EventConstants.EVENT, event); |
| props.put(EventConstants.TIMESTAMP, System.currentTimeMillis()); |
| props.put(EventConstants.FEATURE_NAME, event.getFeature().getName()); |
| props.put(EventConstants.FEATURE_VERSION, event.getFeature().getVersion()); |
| String topic; |
| switch (event.getType()) { |
| case FeatureInstalled: |
| topic = EventConstants.TOPIC_FEATURES_INSTALLED; |
| break; |
| case FeatureUninstalled: |
| topic = EventConstants.TOPIC_FEATURES_UNINSTALLED; |
| break; |
| default: |
| throw new IllegalStateException("Unknown features event type: " + event.getType()); |
| } |
| eventAdmin.postEvent(new Event(topic, props)); |
| } |
| |
| public void repositoryEvent(RepositoryEvent event) { |
| EventAdmin eventAdmin = (EventAdmin) tracker.getService(); |
| if (eventAdmin == null) { |
| return; |
| } |
| Dictionary<String, Object> props = new Hashtable<String, Object>(); |
| props.put(EventConstants.TYPE, event.getType()); |
| props.put(EventConstants.EVENT, event); |
| props.put(EventConstants.TIMESTAMP, System.currentTimeMillis()); |
| props.put(EventConstants.REPOSITORY_NAME, event.getRepository().getName()); |
| props.put(EventConstants.REPOSITORY_URI, event.getRepository().getURI().toString()); |
| String topic; |
| switch (event.getType()) { |
| case RepositoryAdded: |
| topic = EventConstants.TOPIC_REPOSITORY_ADDED; |
| break; |
| case RepositoryRemoved: |
| topic = EventConstants.TOPIC_REPOSITORY_REMOVED; |
| break; |
| default: |
| throw new IllegalStateException("Unknown repository event type: " + event.getType()); |
| } |
| eventAdmin.postEvent(new Event(topic, props)); |
| } |
| } |